CN104816466B - The controllable synchronous bidirectional drawing chain clamp mechanism of course bearing - Google Patents
The controllable synchronous bidirectional drawing chain clamp mechanism of course bearing Download PDFInfo
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- CN104816466B CN104816466B CN201510201880.3A CN201510201880A CN104816466B CN 104816466 B CN104816466 B CN 104816466B CN 201510201880 A CN201510201880 A CN 201510201880A CN 104816466 B CN104816466 B CN 104816466B
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- link mechanism
- clamp
- chain
- connecting shaft
- tracks positioned
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Abstract
The invention discloses a kind of synchronous bidirectional drawing chain clamp mechanisms that course bearing is controllable, including guide rail and chain clipping system, chain clipping system is installed on track, chain clipping system is made of tracks positioned connecting shaft mechanism, wide link mechanism, narrow link mechanism and clamp, one end of wide link mechanism and narrow link mechanism is rotatablely connected after overlapping by tracks positioned connecting shaft mechanism, and the other end of wide link mechanism and narrow link mechanism is rotatablely connected between two neighboring clamp respectively.Chain clamp mechanism of the present invention along guide rail operational process, is not only realizing bi-directional synchronization stretching, and asks operation control easy to be reliable.This chain clamp mechanism solves the friction vibration problems between chain folder and track during the motion, is that the process that film stretches is steadily reliable；Chain folder can carry out angle adjustment appropriate automatically according to different stretching sections and then solve the problems, such as that film stretches unevenness and deforms upon in drawing process.
Description
Technical field
The present invention relates to a kind of adaptive synchronicity biaxial tension equipment of plastic film production lines, especially design a kind of track
The controllable synchronous bidirectional drawing chain clamp mechanism in direction.
Background technology
" biaxial tension " is interesting in recent years one of plastic film forming method, uses biaxial tension technology can be with
Mechanical performance, barrier property, optical property, hot property and the thickness evenness etc. for significantly improving film, can meet a variety of applications
The production requirement in field.
The basic principle of plastic film biaxial tension technology is：High polymer raw material by extruder by heating melting extrusion at
After sheet, more than glass transition temperature, within the scope of fusing point proper temperature below (under elastomeric state), in external force when passing through stretching-machine
Under effect, at the same transversely with longitudinal stretching for carrying out certain multiple, to make strand or crystal plane to be parallel to film flat
It is orientated and ordered arrangement on the direction in face, thermal finalization is then carried out under tension, keep the macromolecular structure of orientation solid
It is fixed, film most can be made through cooling and subsequent processing afterwards.
Synchronous bidirectional pulling method (abbreviation one-off drawing or biaxial tension method), one-off drawing device are by extrusion plastic sheet material
The method that biaxially oriented film is made in longitudinal stretching, cross directional stretch, cold-heat treatment is completed at the same time in a stretching-machine.This
In method, the sheet material of extrusion is clamped in the entrance of stretching, the fixtures of both sides in the same direction, synchronous operation, make sheet material pre-
It is fully preheated in hot-zone, in stretch section, the expanding by means of fixture and the regularly gradually movement of increase folder spacing are real
Existing film longitudinally, laterally stretches simultaneously to be orientated.Finally through Overheating Treatment, cooling, entire film-forming process is completed.
It is compared with step drawing, synchro-draw plastic film has the characteristics that：Since the contact of different rollers makes to be stretched
Plastic film surface loss be preferably minimized to improve the electrical insulation capability of plastic film.
Linear electric machine drawing mechanism can be used at present, the tune of soul may be implemented using the drawing mechanism of many linear electric machines
Speed, therefore draw ratio can be adjusted flexibly, but the equipment manufacturing costs of this method are high, and a large amount of expenses is needed to carry out daily dimension
Shield.
Invention content
The purpose of the present invention is that solve the above-mentioned problems and provides a kind of synchronous bidirectional that course bearing is controllable drawing
Stretch chain clamp mechanism.
The present invention is achieved through the following technical solutions above-mentioned purpose：
The present invention includes guide rail and chain clipping system, and the chain clipping system is installed on the track, the chain clipping system by
Tracks positioned connecting shaft mechanism, wide link mechanism, narrow link mechanism and clamp composition, the tracks positioned connecting shaft mechanism, institute
It is multiple, the width link mechanism and the narrow link mechanism to state wide link mechanism, the narrow link mechanism and the clamp
One end overlap after pass through tracks positioned connecting shaft mechanism rotation connection, the width link mechanism and narrow link mechanism
The other end be rotatablely connected between the two neighboring clamp respectively.
Further, the tracks positioned connecting shaft mechanism is by tracks positioned connecting shaft, axle sleeve, washer and positioning bearing group
At the axle sleeve is set in outside the tracks positioned connecting shaft and in the narrow link mechanism and the wide link mechanism
Between, the washer be set in the tracks positioned connecting shaft it is outer and positioned at the wide link mechanism and the narrow link mechanism it
Between, the both ends of the tracks positioned connecting shaft are both provided with the positioning bearing；The width link mechanism is by plain connecting rod, protruding shaft
Formed with the matched connecting rod of guide way, the plain connecting rod is connect with the link rotatable, the protruding shaft be arranged with it is described
On connecting rod；The structure of the narrow link mechanism is identical as the wide structure of link mechanism；The clamp is by chuck mechanism, folder
Positioning axis mechanism, clamp connecting shaft mechanism and guide way in body, clamp structure are constituted；Locating shaft machine in the clamp structure
Structure is then made of locating shaft, axle sleeve and the positioning bearing in clamp structure.
It includes tracks positioned bearing arrangement that its operation mechanism, which is clamp mechanism, and collet segment is responsible for clamping material embryo, top and
The tracks positioned bearing of lower part be responsible for clamp mechanism along track advance, clamp mechanism both sides respectively by two kinds of link mechanisms of width Lai
The other end of connection, two kinds of link mechanisms is fixed there are one tracks positioned connecting shaft respectively, while connecting shaft both ends are installed
Having track locating shaft to hold makes connecting shaft advance along guide rail.Clamp mechanism, link mechanism and tracks positioned connecting shaft mechanism constitute
One independent stretching chain folder unit, the triangular form structure that they are formed according to the variation of track convert between a type and V-type.
The guide way connected between clamp mechanism lower part and two kinds of link mechanisms constitutes adaptive adjustment clamp mechanism path direction system
System, to enable chain folder to carry out angle adjustment appropriate automatically according to different stretching sections.The spacing of pellicle fixture from it is small to
It is big to realize the longitudinal stretching being clipped between two pellicle fixtures, while by changing the spacing of guide rail so as to adjust the position of connecting shaft
The cross directional stretch for setting that chain folder is driven to realize film.
The beneficial effects of the present invention are：
The present invention is a kind of synchronous bidirectional drawing chain clamp mechanism that course bearing is controllable, compared with prior art, the present invention
Chain clamp mechanism along guide rail operational process, is not only realizing bi-directional synchronization stretching, and asks operation control easy to be reliable.This chain
Clamp mechanism solves the friction vibration problems between chain folder and track during the motion, is that the process that film stretches steadily may be used
It leans on；Chain folder can carry out angle adjustment appropriate automatically according to different stretching sections and then solve film drawing in drawing process
Stretch the problem of unevenness deforms upon.
Description of the drawings
Fig. 1 is this synchronous bidirectional stretching-machine structural schematic diagram；
Fig. 2 is the structural schematic diagram of chain clipping system in Fig. 1；
Fig. 3 is chain folder clamp mechanism sectional view in Fig. 2；
Fig. 4 is chain clamp mechanism original state schematic diagram in Fig. 2；
Fig. 5 is chain folder mechanism deploying status diagram in Fig. 2；
Fig. 6 is the schematic diagram that chain folder is oriented to body mechanism cooperation in Fig. 2；
Fig. 7 is guide way structural schematic diagram in Fig. 6；
Fig. 8 be in Fig. 6 with the matched link mechanism schematic diagram of guide way；
Fig. 9 is that Fig. 2 middle orbits are located by connecting the schematic diagram of axis mechanism；
Figure 10 is the locating shaft structural scheme of mechanism in chain folder clamp structure in Fig. 3；
Figure 11 is the connecting shaft schematic diagram being connect with two kinds of link mechanisms of width in chain folder clamp structure in Fig. 3；
Figure 12 is the structural schematic diagram of chain folder system drive mechanism in Fig. 1.
In figure：Guide rail 1, chuck mechanism 2, clamp 3, clamp connecting shaft mechanism 4, wide link mechanism 5, narrow link mechanism 6, folder
It is positioning axis mechanism 7, tracks positioned connecting shaft mechanism 8, guide way 9 in body structure, positioning bearing 10, matched with guide way
Locating shaft 16, drive chain in connecting rod 11, plain connecting rod 12, axle sleeve 13, washer 14, tracks positioned connecting shaft 15, clamp structure
Wheel 17, clamp connecting shaft 18, protruding shaft 19.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings：
As shown in Figures 1 to 12：The present invention includes guide rail 1 and chain clipping system, and chain clipping system is installed on track 1, chain folder
System is made of tracks positioned connecting shaft mechanism 8, wide link mechanism 5, narrow link mechanism 6 and clamp 3, tracks positioned connecting shaft machine
Structure 8, wide link mechanism 5, narrow link mechanism 6 and clamp 3 are multiple, and one end of wide link mechanism 5 and narrow link mechanism 6 overlaps
Be rotatablely connected afterwards by tracks positioned connecting shaft mechanism 8, the other end of wide link mechanism 5 and narrow link mechanism 6 respectively with it is adjacent
It is rotatablely connected between two clamps 3.
Further, tracks positioned connecting shaft mechanism is by tracks positioned connecting shaft 15, axle sleeve 13, washer 14 and positioning bearing 10
Composition, axle sleeve 13 are set in the centre outside tracks positioned connecting shaft 15 and positioned at narrow link mechanism 6 and wide link mechanism 5, washer
14 are set in outside tracks positioned connecting shaft 15 and between wide link mechanism 5 and narrow link mechanism 6, tracks positioned connecting shaft 15
Both ends be both provided with positioning bearing 10；Wide link mechanism 5 by plain connecting rod 12, protruding shaft 19 and with the matched connecting rod of guide way
11 compositions, plain connecting rod 12 are rotatablely connected with connecting rod 11, in the setting of protruding shaft 19 and connecting rod 11；The structure of narrow link mechanism 6 and width
The structure of link mechanism 5 is identical；Clamp 3 is by positioning axis mechanism 7, the clamp connecting shaft mechanism 4 in chuck mechanism 2, clamp structure
It is constituted with guide way 9；Positioning axis mechanism 7 in clamp structure is then by locating shaft 16, axle sleeve 13 and the locating shaft in clamp structure
Hold 10 compositions.
Drive sprocket 17 is responsible for chain clamp device by the shaft with key way fixation by guide rail 1 and provides tractive force, is assemblied in clamp
The axle sleeve 13 on locating shaft 16 and tracks positioned connecting shaft 15 in structure will occur with the groove on 17 edge of drive sprocket
Contact, the tractive force to obtain driving wheel imparting make chain clamp device advance along track 1.
The groove at drive sprocket edge contacts to obtain the state such as Figure 12 with axle sleeve, and position occurs for each connecting shaft stress
It moves, since each locating shaft is all combined with positioning bearing 10, the track that locating shaft moves will be limited to track 1 by positioning bearing
On groove in, and the frictional force for positioning bearing and interorbital can meet it and is subjected to displacement in groove, so each fixed
Position axis will along the guiding campaign of orbital groove, as shown in Figure 1, rail portion is responsible for the section of oriented film, due to
The effect of bearing is positioned, the positioning axis mechanism 7 in clamp structure will be positioned in the groove of outside, and tracks positioned connecting shaft
Mechanism 8 will be located in inboard groove.
If Fig. 2 chains clamp mechanism is before stretching section, inboard groove and the maximum region of outside groove distance, two at this time
Carry out the distance between two adjacent tracks positioned connecting shaft mechanisms between positioning axis mechanism in adjacent clamp structure recently,
Densification parallelization trend is presented in arrangement between wide connecting rod and narrow connecting rod, while it is parallel that densification is similarly presented between clamp
Change trend, to make chuck mechanism close-packed arrays.
Clamp 3, width link mechanism 5 and tracks positioned connecting shaft mechanism constitute an independent stretching chain folder unit,
The triangular form structure that they are formed according to the variation of track 1 converts between a type and V-type.Several triangular form independence chain folder lists
Member composition drawing chain clipping system, each separate unit are connected by the tracks positioned connecting shaft comprising upper and lower positioning bearing.
Under the constraint of track, apply driving force to it, chain folder unit is in different track sections then according to corresponding angle in a type and V
Open and close movement is carried out between type.When Fig. 4 is inboard groove and outside groove distance maximum, distance is most between two clamps at this time
It is small, and when Fig. 5 is then inboard groove and outside groove distance minimum, the distance between two clamps maximum, each independent at this time
Triangular form structure be excessively achieved that the increase of fore-and-aft distance between minimum range and maximum distance.
Such as the case where Fig. 1, complete synchronous bidirectional stretching is constituted if the other side has a full set of mechanism of its mirror image to coordinate
Principle prototype.The spacing of pellicle fixture realizes the longitudinal stretching being clipped between two pellicle fixtures from small to large, this is because leading
External groove is that chain clamp mechanism form changes in rail；Simultaneously by changing the spacing of guide rail 1 so as to adjust the position of connecting shaft
Come drive chain folder realize film cross directional stretch, this is because both sides chain clamp mechanism is located remotely from each other caused by track arc curve.
When chain clamp mechanism on guide rail with concave slot sports when the irregular variation of cooperation between clamp may occur, such as
Clamp is not parallel when advancing in guide rail straightway, is reduced so as to cause deformation of thin membrane, in uneven thickness, physical and chemical performance.
In order to solve this problem, the controllable synchronous bidirectional drawing chain clamp mechanism of this course bearing is designed with device shown in fig. 6, is exactly
This critical piece of guide way 9 meets the stability requirement of chain clamp mechanism.When inside and outside groove distance changes on track,
With narrow link mechanism 6 angle change will occur for the wide link mechanism 5 around tracks positioned axis 10, and guide way 9 then overcomes folder
Body abandoned disadvantage at this time, makes it be kept at an angle always with width link mechanism.Two not phases among guide way
Logical guide rail makes the guide way clamp moment keep same movement angle by locating shaft 16 in clamp structure and clamp connecting shaft 18
Degree；There are two identical grooves respectively at the both ends of guide way side, and guide way is by groove in the width link mechanism at both ends
Coordinated with the protruding shaft 19 on the matched connecting rod of guide way 11, at this time no matter being in any angle between two link mechanisms
Guide way all will be parallel with its angular bisector to drive clamp parallel with angular bisector, while the locating shaft 16 in clamp structure
Can then prolong with clamp connecting shaft 18 guide rail that two are not communicated among guide way carry out the displacement parallel with angular bisector direction from
And solve the problems, such as Planar Mechanisms, the central axes of guide way 9 when on rectilinear orbit will with the perpendicular relationship of rail flanges, when
When on arc orbit will with its perpendicular relationship of tangent arc tangent line, make chain clamp mechanism even running ensure film it is good
Good physical and chemical performance.
The basic principles and main features and advantages of the present invention of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (1)
1. a kind of synchronous bidirectional drawing chain clamp mechanism that course bearing is controllable, it is characterised in that：Including guide rail and chain clipping system, institute
It states chain clipping system to be installed on track, the chain clipping system is by tracks positioned connecting shaft mechanism, wide link mechanism, narrow link mechanism
It is formed with clamp, the tracks positioned connecting shaft mechanism, the wide link mechanism, the narrow link mechanism and the clamp are
It is multiple, it is rotated by the tracks positioned connecting shaft mechanism after one end coincidence of the width link mechanism and the narrow link mechanism
Rotation connects the other end of connection, the width link mechanism and the narrow link mechanism between the two neighboring clamp respectively
It connects；
The tracks positioned connecting shaft mechanism is made of tracks positioned connecting shaft, axle sleeve, washer and positioning bearing, the axle sleeve set
Outside loaded on the tracks positioned connecting shaft and positioned at the centre of the narrow link mechanism and the wide link mechanism, the washer set
Outside loaded on the tracks positioned connecting shaft and between the wide link mechanism and the narrow link mechanism, the tracks positioned
The both ends of connecting shaft are both provided with the positioning bearing；
The width link mechanism is formed by plain connecting rod, protruding shaft and with the matched connecting rod of guide way, the plain connecting rod and institute
It states link rotatable to connect, in the protruding shaft setting and the connecting rod；
The structure of the narrow link mechanism is identical as the wide structure of link mechanism；
The clamp is made of positioning axis mechanism, clamp connecting shaft mechanism and the guide way in chuck mechanism, clamp structure；
Positioning axis mechanism in the clamp structure is then made of locating shaft, axle sleeve and the positioning bearing in clamp structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201880.3A CN104816466B (en) | 2015-04-24 | 2015-04-24 | The controllable synchronous bidirectional drawing chain clamp mechanism of course bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510201880.3A CN104816466B (en) | 2015-04-24 | 2015-04-24 | The controllable synchronous bidirectional drawing chain clamp mechanism of course bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104816466A CN104816466A (en) | 2015-08-05 |
| CN104816466B true CN104816466B (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510201880.3A Expired - Fee Related CN104816466B (en) | 2015-04-24 | 2015-04-24 | The controllable synchronous bidirectional drawing chain clamp mechanism of course bearing |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114770910B (en) * | 2022-05-27 | 2024-03-05 | 佛山市盟思拉伸机械有限公司 | Dynamic stabilizing mechanism and synchronous stretching device of chain clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104044263B (en) * | 2014-06-13 | 2017-12-15 | 长春工业大学 | The controllable synchronous bidirectional stretching-machine rail mechanism of chain folder course bearing |
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Granted publication date: 20181016 Termination date: 20190424 |